set_fit.m

来自「FISMAT accommodates different arithmetic」· M 代码 · 共 26 行

function fr = set_fit(xi,fv,x,set)

% fr=set_fit(xi,fv,x,set)
%
% sets the fit value fv of the set at the slot of universe of discourse x
% corresponding to the abscissa value xi.
%
% FSTB - Fuzzy Systems Toolbox for MATLAB
% Copyright (c) 1993-1996 by Olaf Wolkenhauer
% Control Systems Centre at UMIST
% Manchester M60 1QD, UK
%
% 25-Feb-1994

fr = set; [m,n] = size(set);
xmin = x(1); xmax = x(n); dx = xmax-xmin;
slot = round(n*(xi-xmin)/dx);
if (xi<=xmin)|(slot<=0),
  fr(1,1) = fv;
elseif (xi>=xmax)|(slot>n), 
  fr(n)=fv; 
else
  fr(1,slot) = fv;
end;
slot